Orthogonality of αx scan must be good enough BX 10 BY 1 optics vs BX 2 p 5 BY 1 optics Due the slight breaking of orthogonality over the range of the x scan, only tilt angles Ɵ > 2 mrad can be diagnosed by this method

Request for FCPPL support in 2013 Conclusion & prospects • ATF 2 : first measurements of 70 nm vertical beam sizes ! • Building on initial FCPPL support in 2007, a renewed and deepened collaboration between IHEP and LAL is developing to work on several topics relevant to the final focus of future linear colliders • Already several new and promising results in 2013. stay tuned for further progress in 2013 and 2014 !